Ceramic dielectric material

Details Ceramic dielectric material Ceramic dielectric material

1976-01-23

1977-10-18

Weinblatt, Mayer

Compositions

Electrolytes for electrical devices

106 732, 252 63, 252520, 252521, 361320, 423593, C04B 3550, C04B 3546, H01B 310, H01B 312

Patent

active

040545326

ABSTRACT:
A ceramic compound having the formula (La.sub.x A.sup.+2.sub.1-x).sub.2 (Ti.sub.x B.sup.+5.sub.1-x).sub.2 O.sub.7 wherein A.sup.+2 is a positive divalent element selected from the group consisting of Ba, Ca, Cd, Mg, Sr and mixtures thereof and B.sup.+5 is a positive pentavalent element selected from the group consisting of Sb, Mo, Nb, Ta, W and mixtures thereof and x is a numeral ranging from 0.70 to 0.99. This compound is characterized by a relatively small temperature coefficient of permittivity, a relatively high insulation resistance, a relatively low loss factor and is compatible with relatively low cost noble metals, making it useful for forming dielectric elements in monolithic multi-layer capacitor elements.

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patent: 3775142 (1973-11-01), Roup
patent: 3788867 (1974-01-01), Rutt

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